# Understanding children's play by Ruth E. Hartley — resale value

Source: JunkPal price guide — https://junkpal.ai/products/understanding-children-s-play-ruth-e-hartley-ol7463982w

**Understanding children's play by Ruth E. Hartley** — resale value from real closed eBay sales.

Live listings and the full sold-price history are on the page: https://junkpal.ai/products/understanding-children-s-play-ruth-e-hartley-ol7463982w

Values are medians of real closed eBay sales, updated 2026-06-18. They are estimates for reference, not offers or appraisals — condition, completeness and edition move them a lot, so compare against the sold listings before pricing anything.

## Check the market

- [Sold listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DRuth%2520E%2520Hartley%2520Understanding%2520children's%2520play%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-sold&p=md-sold) — the closed sales these medians are computed from
- [Live listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DRuth%2520E%2520Hartley%2520Understanding%2520children's%2520play%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-live&p=md-live) — what sellers are asking right now

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## Details

| Field | Value |
| --- | --- |
| UPC / EAN | 9780415209908 |
| Brand | Ruth E. Hartley |
| Published | 1952 |
| Publisher | COLUMBIA UNIVERSITY PRESS |
| Pages | 391 |
| Editions | 19 |
| Category | Psychology |

## Understanding children's play resale value

**Understanding children's play** by Ruth E. Hartley (1952). Across 19 editions. Used-book value depends heavily on edition (first printing vs. reprint), condition, dust jacket, and whether it's signed. First editions and out-of-print titles command the biggest premiums.

### What drives the price

First editions/first printings, intact dust jackets, signatures, and unmarked pages are the top value drivers. Book-club editions and later reprints are worth far less.

## FAQ

**Is this a rare edition of Hartley's work?**

This is the 1952 publication, which is part of the 19 total editions released.

**What is the ISBN for this book?**

The ISBN for this specific copy is 9780415209908.

**Who is the author of this psychology text?**

The book, "Understanding Children's Play," was authored by Ruth E. Hartley.

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Full price guide: https://junkpal.ai/products/understanding-children-s-play-ruth-e-hartley-ol7463982w
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Cite as: "JunkPal price guide value as of 2026-06-18, based on real sold listings (junkpal.ai)"